.container{
  border: 1px solid red;
}
.box{
  float: left;
  min-height: 200px;
}
.main{
  width: 100%;
}
.left{
  width: 150px;
  background: linear-gradient(to bottom,red,pink);
  margin-left: -100%;
}
.right{
  width: 200px;
  background: linear-gradient(to top,gray,yellow);
  margin-left: -200px
}
.wrap{
  background: linear-gradient(to right,blue,purple);
  margin: 0 200px 0 150px;
  min-height: 200px;
}
